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Filing metadata

Accession number: 0001140361-11-040304
Form type: Form 4
Filer: NORTHWEST NATURAL GAS CO
CIK: CIK 73020
Filed: Aug 08, 2011
Reporting period: Aug 04, 2011
Description: Insider transaction

Documents

0001140361-11-040304-index.htm

Complete submission

0001140361-11-040304.txt

directory listing

Filed by

NORTHWEST NATURAL GAS CO